Type-writing machine.



No. 847,428. PATENTED MA 19,1907. r H. s. MOOORMAGK.

TYPE WRITING MACHINE.

APPLICATION FILED APE-6. 1905.

a sums-sum '1.

WITNESSES. Ill/VENTOH ATTORNEY PATENTED MAR. 19, 1907. H. s. MOGORMAGK.

' TYPE WRITING MACHINE; APPLICATION FILED APR.6. 190s.

WITNESSES:

ATTORNEY 3 SHEETS-SHEET 2.

PATENTED MAR. 19, 1907.

H.-S; MGOORMAGK. TYPE WRITING. MACHINE.

APPLIGATION FILED APR.6. 1905 BSHBETS-SHEET 3.

uvmvrwe By I i 417m Heretoforeit has been the practice to in-. sert thesheet of paper behind the platen and- I UNITED STATES PATENT, OFFICE.

HARRY S. MoCORMACK, OF PROVIDENCE, 'RHODE ISLAND, ASSIGNOR TO UNDERWOODTYPEWRITER COMPANY, OF' NEW YORK, N. Y., CORPO- RATION OF NEW JERSEY.

TYPE-WRITING MAGHINE.

To-aZZ whom it may concern:

Beit known that I, HARRY'S. MoCoRMAo'K, a citizen dfifthe- UnitedStates,- residing in Providence, State of Rhode Island, have inventedcertain new and usefulilmprovements in Type-Writ-' ing Machines, ofwhich the following is a specification.

This invention relates principally to means for squaring theleading'edge of the paper'w ith reference to the printing-line on theplaten of a type-writing machlne.

to turn the platen so as to bring the sheet into view at'theprinting-point and then adjust the paper "so that it is square withtheprintingunsatisfactory. Moreover, in the operation ine. Thisoperation is slow and known as condensed billing it is customary aftercompleting afbill to rotate the platen back, insert a fresh bill, andthen roe tate the platen forward to bring the first line 'or'space onthe billto the printing-point.

The necessary adjustment or "squaring of the bill relatively to theprinting-line is difficult,

owing'to the presence in the machine of the usual recording and carbonsheets. Moreover,

it is found in practice that the bill-sometimes gets out'of properregister with the recording sheet that is, the first line of writingfalls in the wrong space upon either the bill orv the recording-sheet,or both, particularly where mechan'ical means are employed to determinethe extent of the backward and forward rev olutions of the platen.-

In order to overcome these difliculties, I

provide at the platen, between the receiving sidethereof and theprinting-point, a gage.

This gage stands normally below the platen and out of use but means areprovided Whereby at the will of the operator thegage may be one moved upagainst the platen. This is by means .of a key mounted upon theplatenl'rame.

One of the features of my invention resides in employing for thispurpose 'the same.

key that upon the Underwood type-writing machine is used for releasingthe pressurerollers, so that when said pressure rollers are releasedthegage is simultaneously thrown against the platen. Thus the paper mayhe slipped in freely at the rear of the platen until in the county ofProvidence and 'ing 'the pressure rollers. v Vance of one of thepressure-rollers, so that sition. Fig. 8 isa perspective view PatentedMarch 19, 1907.

the'le'ading edge thereof strikes the gage and is squared for truedthereb Thereupon said key is returned to nornia position, withdrawingthe gage from the platen and restorthe latter at'lonc'e grips theadjusted paper,

and the latter is fed true to the printing-line. Moreover, in condensedbilling 'rnent of each freshly-inserted bill isrendered exactly thesameas that of all other bills, and hence the first line of writing appears'upon each bill in the exact position required, and the carbonfcop fallsin the upon the recon ingrsheet.

In the accompanying drawings, Figure 1is a transverse sectionalelevation of the platenthe adjusts Saidgage is in adproper positionframeof an Underwood type-writing 'machine with myjimprovements appliedthereto,

the parts being shown in normal position. Fig. 1

2 1s a view similar to. Fig. 1, but showing the roller-releasing keydepressed, the pressure- .rollers thrown off, the gage moved up againstthe platen, and a sheet inserted against said gage. Fig- 3 is aperspective View of aportion of the gage mechanism in normal position,Fig. is a front View of the parts 'seen' at Fig. 1. Fig. 5-is a rearview of the same;

Fig. 6 shows another form of. the gage, the parts beingseen in normalposition. Fig. 7 is a similar view with the gage in working poof part ofthe gage. mechanism seen at Figs. 6 and 7.

The Underwood imachine usually cornprises a revoluble platen 1,journaled in ends 2 3 of the platemframe, which also comprises 1 a rearplate or paper-shelf 4. Below-the platen are forward and rearpressure-roll ers 5 6, mounted, respectively, upon ar'n1s'7 8,

pivoted upon a rod 9', which i's'fixed. at its ends in said platen-frameends 2 3. Springs 10 press the rollers against the platen. 'A rocksshaft 11, which is connected by a link 12 to a finger-piece 13, pivotedat 14 upon the platenframe end 3, is used to release said rollers,

being for this purpose provided with recesses 1 5 which normally receivearms 1 6 17 that are rigid with'thearms 8 7-, respectively, as seen atFig. 1. Upon depressing said key, as at Fig. 2, said rock-shaft 11 isturned, and the 'arms 16 17 are cammed outwardlythereby;

throwing down the pressure-rollers; 5 6, as

atFig; 2. The key is mechanical-lyd etained and should be of sufficientdistance from tip to tip along the platen to enable the leading 3 edgeof the sheet to be readily squared. Preferably "I form the gage intwosimilar parts, which are sufliciently separated for the Each partcompurpose just mentioned. prises a lip or gage proper 18, standingnormally below the platen and beneath the usual deflector 19, whichcurves beneath the platen, said lip being formed upon theforward edge ofa strip or arm 20, which is curved round the fixed rod 9 so as toform apivot, Whereby the gage is enabled to swing up and down. AspringZ1,projectingfrom' afixture 22, bears against a rigid tongue 23,which depends from the arm 23.

from the arm 20, said spring giving said gage a constant tendency toturn upon the fixed rod 9 in a direction to carry the gage 1.8 upagainst the platen. Each gage member is, however, normally held awayfrom the platen by means of a pin 24;, which projects laterally from acollar 25, fixed 11 non said rock-shaft 11 ,I

as seen at Figs. 1 and .3. YVhen the rock shaft is turned by means ofthe key 13, the pins 24 ride down the lingers 23, which are in thenature of'canis, and peri'nit the springs 21. to vibrate the gagemembers 18 up against the platen, as at Fig. 3. The gage members stay atthis point as long as the 'key 13 remains depressed, and the sheet orsheets of paper 26 may now be inserted and squared by bringing theleading edge thereof against the gage members, which, aforesaid, aresufficiently far apart to give a broad bearing for truing the sheet. Theupper edge of each gage member is beveled, as at 26, to fit the platen,as seen at Fig. 2, so that the edge of the paper cannot work in betweenthe gage andthe platen. During the final portion of the initial movementof the key tho pin 24 is idle, or, in other words, the il .v11\\'ardmovement of the key may continue after. the springs 21have. pressed thegage members against the platen, one of said pins 24 being shown at Fig.2 as moved away Thus it is insured that each gage member shallfitagainst the platen, while a further downward movement of the key ispermitted in order to enable'the proper locking action to occur betweenthe rockshaft. 11 and the roller-releasing arms 16 17.

The release-key 13 is now lifted,and the pins by riding up albng thetongues 23 cam the gage members 18 away from the platen simultzmeouslytothe Fig. '1 position, and at the same time the pressure-rollers arecaused to bear against the platen. t will be seen that said arms Ithegage is in advance of the pressure-roller 6, so that the latter uponassuming'normal position bears against the adjusted sheet or sheets '26,and hence the latter is caused 'to feed accurately'and squarely to theprintingpoint, and'incondensed-billing the forward movement of-theplaten brings the bill to the exact position required for printingthe-first line thereon. The gage members are adapted to project upthrough openings 27 in the deflector-plate.

The tip of each-gage member at 26 is parallel with or fitted to theplaten. Each gage member by reason of being pivoted in rear of andconsiderably below the point of contact with the platen moves not onlydownwardly, but also forwardly and away from the leading edge of thepaper, when the key 13 is raised, or, in other words, each gage memberrecedes from the paper, and hence has no liability to turn the edges ofthe paper or to disturb theadjustment thereof. The turning of the edgeof the paper would be an objection, as it would interfere with the paperentering the bite of the forward feed-rollers.

If it is desired to depress the release-key 1;; at any time when thepaper'is in position for printing, this may be done, and the gage mem.-bers will rise and ride lightly in contact with the paper without,however, being liable to tear the same and not interfering withtheadjustment of the paper. Atthis time the gage members will be merelyheld againstthe paper by the light springs 21, which will ac-' commodateany thickness of paper that may be inserted in the machineso that thegages can do no damage at any time. i It will be observed that thedevice is not only simple and durable, but also easily attached to themachine.

in the modification shown at Figs; 6, 7, and 8 each gage 28 is in theform of a vertical slide 29, where it slides up and down on 'theshoulder of a screw 30, fixed to the rod 9. The upward movement of eachgage is effect-- ed by a pin 31, projecting from a collar 25, .lixedupon the roc -shaf t 11 \Vhen the rock-shaft is turned, the pin strikesthe upper portion 32 of a bent member or hook formed upon the gage 2S,and thereby lifts-the gage. Said bent member also includes a lower part33, whichthe pin 31 may strike upon its return movement, so as to insurea withdrawal of the gage from the platen, at Fig. 6.

' Other variations maybe resorted towithin the scope of my invention,and portions of my improvements may be used without others.

llaving thus described my invention, I claim 1. In a type-writingmachine, the combination. with a revoluble platen, of forward and rearpressureaoller's bearin against the under side of the platen, a gagebetween said rollers below the platen and normally separatedfromthe-latter, a key, means connectthe platen.

roller, means being provided whereby the,

key is detained in Working position, a gage normally in a position ofdisuse, for squaring the leading edge of the paper relatively to theprinting-point, and means for enabling said key by its roller-releasingmovement to cause the movement of said gage to the platen; provisionbeing made, for further movement of the key after'said gage reaches 3 Ina type-writing maehine,-the combination with a revoluble platen, of aroller for pressing paper against theplaten, a key, means controlled bysaid key for 'camming said roller awayfrom'the platen, said cammingmeans being constructed to detain said key in working position, a gagefor squaring the leading edge of the paper relatively to theprinting-line, yielding -means tending constantly to move said gage tothe platen, and a cam device normally holding said gage away from theplaten, and including rovision for further movement of the key idlyafter the gage reaches the platen.

4. In a type-Writin machine, the combination witha-revolub e platen, ofa rod eX-. tending along the platen, a gage journaled upon the rod forsquaring the leading edge of the paper relatively to the printing-line,a. key, a rock-shaft to which said key is connected, said rock-shafthaving means for cammingsaid gage away from. the platen, and constructedto ermit the movement of said gageto the p aten during the initialstroke of said key, a pressure-roller; bearing against the under side ofthe platen, an arm supporting said pressure-roller and journaled uponsaid rod, and means controlled by said rock-shaft for causing theinitial movement otsaid key to release said roller.

5 In a type-Writing machine, the combination with a platen, a gagenormally in a position of disuse, for s uaring the leading edge of thepaper relative y to the printing-point, a key, and means for enablingsaid key-to cause the movement of said gage t0 the platen; provisionbeing made i'or further movement of the key after said gage reachesthe'platen.

6. In a type-Writing machine, the combination with a revoluble platen,of a gage for squaring the leading edge of the paper relatively to theprinting-line, yielding means tending constantly to move said gage tothe platen, a key, and a cam device controlled by said key and normallyholding said gage away from the platen, and including pro vision foriurther movement of the key after the gage reaches the platen.

7. In a type writiiw machine, the combination with a revolub le platen,of a rod extending along the platen, a gagejournaled upon the rod forsquaring the leading edge of the paper relatively to the printing-line,a

key, and a rock-shaft to Which said key is. connected, said rock-shafthaving means for camming said gage'away from the platen, and constructedto ermit the movement of said gage to the p aten during the initialstroke of said key;

HARRY S. MOCORMACK.

VV'itnesses-. Y

MAY S. DILLON, DENNIS F. OBRIEbL-

